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The Shwachman-Bodian-Diamond syndrome protein family is involved in RNA metabolism.

A combination of structural, biochemical, and genetic studies in model organisms was used to infer a cellular role for the human protein (SBDS) responsible for Shwachman-Bodian-Diamond syndrome. The crystal structure of the SBDS homologue in Archaeoglobus fulgidus, AF0491, revealed a three domain protein. The N-terminal domain, which harbors the majority of disease-linked mutations, has a novel three-dimensional fold. The central domain has the common winged helix-turn-helix motif, and the C-terminal domain shares structural homology with known RNA-binding domains. Proteomic analysis of the SBDS sequence homologue in Saccharomyces cerevisiae, YLR022C, revealed an association with over 20 proteins involved in ribosome biosynthesis. NMR structural genomics revealed another yeast protein, YHR087W, to be a structural homologue of the AF0491 N-terminal domain. Sequence analysis confirmed them as distant sequence homologues, therefore related by divergent evolution. Synthetic genetic array analysis of YHR087W revealed genetic interactions with proteins involved in RNA and rRNA processing including Mdm20/Nat3, Nsr1, and Npl3. Our observations, taken together with previous reports, support the conclusion that SBDS and its homologues play a role in RNA metabolism.

Pubmed ID: 15701634


  • Savchenko A
  • Krogan N
  • Cort JR
  • Evdokimova E
  • Lew JM
  • Yee AA
  • S├ínchez-Pulido L
  • Andrade MA
  • Bochkarev A
  • Watson JD
  • Kennedy MA
  • Greenblatt J
  • Hughes T
  • Arrowsmith CH
  • Rommens JM
  • Edwards AM


The Journal of biological chemistry

Publication Data

May 13, 2005

Associated Grants

  • Agency: NIGMS NIH HHS, Id: P50-GM62413-02
  • Agency: NIGMS NIH HHS, Id: P50-GM62414

Mesh Terms

  • Acetyltransferases
  • Amino Acid Motifs
  • Amino Acid Sequence
  • Archaeoglobus fulgidus
  • Crystallography, X-Ray
  • Genomics
  • Magnetic Resonance Spectroscopy
  • Molecular Sequence Data
  • N-Terminal Acetyltransferase B
  • Nuclear Proteins
  • Phylogeny
  • Protein Binding
  • Protein Conformation
  • Protein Folding
  • Protein Structure, Secondary
  • Protein Structure, Tertiary
  • Proteins
  • Proteomics
  • RNA
  • RNA, Ribosomal
  • RNA-Binding Proteins
  • Saccharomyces cerevisiae
  • Saccharomyces cerevisiae Proteins
  • Sequence Homology, Amino Acid
  • Static Electricity